#1B2C7A#1B2C7A

#1B2C7A is a dark, vivid blue. Relative luminance 0.034; OKLCH L 33.4% C 0.134 H 268.5°. Best body text is #FFFFFF at 12.44:1 contrast (WCAG AA passes).

Color values

HEX	#1B2C7A
RGB	rgb(27, 44, 122)
HSL	hsl(229, 64%, 29%)
HSV	hsv(229, 78%, 48%)
CMYK	cmyk(77.9%, 63.9%, 0%, 52.2%)
CIE-LAB	lab(21.72, 23.04, -46.36)
CIE-LCH	lch(21.72, 51.77, 296.43°)
OKLab	oklab(33.41% -0.0035 -0.134)
OKLCH	oklch(33.41% 0.134 268.5)
XYZ	xyz(4.8643, 3.4390, 18.8160)
Luminance	0.0344 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2C7A #7A691B

analogous

#1B5C7A #1B2C7A #3A1B7A

triadic

#1B2C7A #7A1B2C #2C7A1B

tetradic

#1B2C7A #7A1B5C #7A691B #1B7A3A

square

#1B2C7A #7A1B5C #7A691B #1B7A3A

split-complementary

#1B2C7A #7A3A1B #5C7A1B

monochromatic

#060919 #101A48 #1B2C7A #263EAC #3C57D4

Accessibility & contrast

On white

12.44

#1B2C7A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#1B2C7A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2C7A

12.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2C7A	#FFFFFF	#000000	##FFFFFF
##1B2C7A	1.00	12.44	1.69	12.44
#FFFFFF	12.44	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00397D

Deuteranopia (green-blind)

#003079

Tritanopia (blue-blind)

#00404E

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1b2c7a;
/* rgb */ color: rgb(27, 44, 122);
/* oklch */ color: oklch(33.4% 0.134 268.5);

Tailwind

colors: {
  custom: {
    50: '#6764a1',
    500: '#1b2c7a',
    950: '#000000',
  },
}

SCSS

$custom: #1b2c7a;
$custom-light: #6764a1;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2c7a",
  "rgb": {
    "r": 27,
    "g": 44,
    "b": 122
  },
  "hsl": {
    "h": 229.263,
    "s": 63.758,
    "l": 29.216
  },
  "oklch": {
    "l": 0.33411,
    "c": 0.13402,
    "h": 268.5
  },
  "luminance": 0.0344
}

Semantic roles & 50–950 ramp

primary

#1B2C7A

secondary

#AE9B43

accent

#C941E7

background

#F6F6FA

surface

#EBEBF3

border

#C6C6CD

text

#07050F

muted

#7A7A7F

Preview Lab

Preview with #1B2C7A

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →